Status update:

SATA problems solved: I am using IDE now
Reboot problem still exist but as this system is working 24/7 it’s no issue.

Installed CentOS, Bluequartz and some updates like Openwebmail, Phpmyadmin, Pico and MC and now busy to understand how the VHOST stuff is working under Bluequartz with virtualnamehost

Fixed issue with Gallery. .htaccess.
First thought was that it had to do with allowoverride
But it was a problem in the release of 1.5RC1 where the .htaccess was not read correctly (PHP VALUE) Fixed it by upgrading to 1.5.RC2

Next stage is to add more virtual hosts and make sure that mail can work.